I agree with Stephen that your usage of τό is spot on. I tend to add the Greek quotation marks just to make things more explicit. As far as “mis-spell,” this came up on another forum, but I forgot what we decided. There is nothing wrong with ἀνορθογράφω (I understood what you meant) but LSJ lists ἀνορθόω as “I set up straight, I correct,” where the alpha nu is not privative but is the preposition ἀνἀ. So there could be some confusion. Plus, I’m not sure, but I think this word would be augmented ἀνωρθογράφη, not ἠνορθογράφη, although the latter is not impossible. I would use the simpler κακῶς γράφω.